DP Mathematical Studies Questionbank

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• 17N.1.sl.TZ0.5d: Diogo is 18 years old. Give a reason why the regression line should not be used to estimate the...
• 17N.1.sl.TZ0.5c: By placing a tick (✔) in the correct box, determine which of the following statements is true:
• 17N.1.sl.TZ0.5b: Draw the regression line on the scatter diagram.
• 17N.1.sl.TZ0.5a: Find the mean number of hours that the people surveyed watch television per week.
• 17M.2.sl.TZ2.3b.i: Write down, for this set of data the mean number of folders produced, \(\bar x\);
• 16N.2.sl.TZ0.1g: Use the given equation of the regression line to estimate the number of IB Diploma points that...
• 16N.2.sl.TZ0.1f: Draw the regression line, from part (e), on your scatter diagram.
• 16N.2.sl.TZ0.1e: Write down the equation of the regression line \(y\) on \(x\) for these eight male students.
• 16N.2.sl.TZ0.1d: Write down the value of \(r\), the Pearson’s product–moment correlation coefficient, for these data.
• 16N.2.sl.TZ0.1c: Plot the point \((\bar x,{\text{ }}\bar y)\) on your scatter diagram and label this point M.
• 16N.2.sl.TZ0.1b: (i)     \({\bar x}\), the mean number of hours spent on social media; (ii)     \({\bar y}\), the...
• 10M.2.sl.TZ1.1e: Write down the equation of the regression line y on x for the above data.
• 10M.2.sl.TZ1.1f: Draw the regression line y on x on your scatter diagram.
• 11N.1.sl.TZ0.4b: Write down the equation of the regression line, \(y\) on \(x\) , for the examination scores of...
• 12N.2.sl.TZ0.1c: Write down the equation of the regression line of y on x.
• 12M.1.sl.TZ1.11a: Use your graphic display calculator to write down the equation of the regression line for y on x...
• 10M.2.sl.TZ2.2f: Write down the equation of the regression line for the data given.
• 09N.2.sl.TZ0.4A, c: Write down the equation of the regression line of y on x.
• 11M.2.sl.TZ1.1e: The equation of the regression line \(y\) on \(x\) is \(y = - 0.470x + 83.7\) . Draw the...
• 09M.1.sl.TZ2.6a: Write down the equation of the regression line for s on t.
• 13M.2.sl.TZ1.3g: George decides to model the change in temperature of the coffee with a linear function using...
• 11M.2.sl.TZ2.1B.d: Use your graphic display calculator to find the equation of the regression line of \(F\) on \(S\)...
• 11M.2.sl.TZ2.1B.e: Draw the regression line on your scatter diagram.
• SPM.1.sl.TZ0.4c: Draw the regression line for \(y\) on \(x\) on the set of axes above.
• 07M.2.sl.TZ0.1e: A sample of 15 of the fish was weighed. The weight, W was plotted against length, L as shown...
• 07N.1.sl.TZ0.14a: Use your graphic display calculator to find the equation of the regression line of y on x.
• 08N.1.sl.TZ0.11b: Write down, in the form \(y = mx + c\) , the equation of the regression line \(y\) on \(x\) for...
• 08M.2.sl.TZ1.3d: The equation of the line of regression for \(n\) on \(T\) is \(n = dT - 100\). (i)     Write...
• 14M.1.sl.TZ2.12a: Use your graphic display calculator to write down the equation of the regression line \(t\) on...
• 14M.1.sl.TZ2.12c: Use your regression equation to find the amount of time 4 cleaners take to clean the school.
• 13N.2.sl.TZ0.1e: Draw the regression line \(y\) on \(x\) on your scatter diagram.
• 13N.2.sl.TZ0.1d: Use your graphic display calculator to find (i)     the product–moment correlation coefficient,...
• 14M.2.sl.TZ1.1e: Write down (i)     the Pearson’s product–moment correlation coefficient, \(r\), for Barry’s...
• 14M.2.sl.TZ1.1f: Draw the regression line \(y\) on \(x\) on your graph.
• 15M.1.sl.TZ1.4a: Find (i)     Pearson’s product–moment correlation coefficient, \(r\); (ii)     the equation of...
• 15M.2.sl.TZ2.6b: Write down the equation of the regression line \(y\) on \(x\) for these data, in the form...
• 15M.2.sl.TZ2.6e: All the bicycles that are produced are sold. The bicycles are sold for 304 USD each. (i)    ...
• 14N.2.sl.TZ0.1d: Use your graphic display calculator to write down the equation of the regression line \(T\) on...
• 14N.2.sl.TZ0.1f: Given that \(\bar x = 70\), draw the regression line \(T\) on \(x\) on your scatter diagram.